Australian institute of sports
http://www.ausport.gov.au/ais/nutrition

The International Society of Sports Nutrition
http://www.sportsnutritionsociety.org/

Journal of Sports Nutrition
http://jn.nutrition.org/

Current Concepts in Sports Nutrition AIS (pdf file)
CurrentConcepts.pdf (939 KB download)

Wikipedia
http://en.wikipedia.org/wiki/Sports_nutrition

International Society of Sports Nutrition
Protein and exercise

International Journal of Sport Nutrition and Exercise Metabolism. 2006 - Stager, Joel M., et al
Chocolate Milk as a Post-Exercise Recovery Aid